Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/32357
Title: The fracture toughness of hot-pressed NbCr2 alloys doped by rare earth yttrium
Authors: Lu, SQ
Zheng, HZ
Fu, MW 
Issue Date: 2009
Source: Scripta materialia, 2009, v. 61, no. 2, p. 205-207
Abstract: NbCr2 Laves phase alloys doped by rare earth yttrium were fabricated by mechanical alloying and hot pressing. The effect of yttrium addition content on the fracture toughness of these alloys was investigated. The experimental results show that a minor addition of yttrium can refine the microstructure and toughen NbCr2 Laves phase. When the content of yttrium in NbCr2 is about 0.1 wt.%, the fracture toughness value is increased by about 20%, which is 4 times higher than that of the cast alloy (1.2 MPa m1/2).
Keywords: NbCr2 Laves phase alloy
Rare earth element yttrium
Fracture toughness
Microstructure analysis
Publisher: Pergamon Press
Journal: Scripta materialia 
ISSN: 1359-6462
EISSN: 1872-8456
DOI: 10.1016/j.scriptamat.2009.03.049
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